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Citrus2011 [14]
3 years ago
9

Solve mathematics question, in photo. :)

Mathematics
1 answer:
Jlenok [28]3 years ago
7 0
(0,4) is the correct answer.
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Solve 2x2 + 20x = −38.
Makovka662 [10]

Answer:

Correct Answer is C(−5 ±square root 6)

Step-by-step explanation:

2x^2+20x+38=0

2(x^2+10x+19)=0

x^2+10x+19=0

This is a quadratic equation here we have used following formula to find the roots of this equation

x=-b−±square root (b^2-4*a*c))/2*a......(1)

Here,

a=1

b=10

c=19

put values of a, b and c in equation (1)

x=(-10 ±square root(10^2-4*1*19))/2*1

x=(-10 ±square root(100-76))/2

x=(-10 ±square root(24))/2

x=(-10 ±square root(2*2*6))/2

x=(-10 ±2square root(6))/2

x=2(-5 ±square root(6))/2

x=-5 ±square root(6)


Hope this answer will help you

6 0
3 years ago
Simplify the expression. −9(4 − 3j)
faltersainse [42]

Answer:

-36 + 27j

Step-by-step explanation:

−9(4 − 3j)

Distribute

-9 * 4  -9 * (-3j)

-36 + 27j

6 0
3 years ago
Read 2 more answers
Find the probability that he makes one of the two free throws using the multiplicativ
sertanlavr [38]
The probability is 1/2
7 0
3 years ago
B) Find the value of 2^-3 x 3^-2
jekas [21]

Answer:

1/72

Step-by-step explanation:

2^-3 = 1/2^3 = 1/8

3^-2 = 1/3^2 = 1/9

1/8 x 1/9 = 1/72

7 0
3 years ago
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Which expression shows the results of applying the distributive property to 3 (1/5x- 1/7)
marshall27 [118]

The first option: (3/5)x - 3/6

3 0
2 years ago
Read 2 more answers
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